/* SmallTechBigBrain — Design System */
:root {
  --bg:      #050A14;
  --bg2:     #080E1A;
  --bg3:     #0A1220;
  --cyan:    #00D4FF;
  --blue:    #0066FF;
  --purple:  #7B2FFF;
  --surface: rgba(255,255,255,0.03);
  --border:  rgba(0,212,255,0.12);
  --border2: rgba(255,255,255,0.06);
  --text:    #E8F0FE;
  --muted:   #7E97B8;
  --r:       20px;
  --r-sm:    12px;
  --font:    'Space Grotesk', system-ui, sans-serif;
  --disp:    'Syne', system-ui, sans-serif;
  --ease:    cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}

/* ── CONTAINER ── */
.container{max-width:1240px;margin:0 auto;padding:0 28px}

/* ── NAVBAR ── */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:18px 0;transition:all .3s var(--ease);
}
.navbar.scrolled{
  background:rgba(5,10,20,.9);
  backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--border);
  padding:12px 0;
}
.nav-container{
  max-width:1240px;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
/* Logo: riquadro bianco quadrato con solo il cervello SVG */
.logo-box{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  background:#ffffff;
  border-radius:12px;
  width:52px;
  height:52px;
  padding:5px;
}
.logo-img{
  display:block;
  width:100%;
  height:100%;
  object-fit:contain;
}
.logo-text{display:none}
.logo-accent{color:var(--cyan)}
.nav-links{list-style:none;display:flex;gap:2px;margin-left:auto}
.nav-links a{
  padding:6px 14px;border-radius:8px;
  font-size:.87rem;color:var(--muted);transition:all .2s;font-weight:500;
}
.nav-links a:hover{color:var(--text);background:var(--surface)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:12px}
.lang-toggle{
  display:flex;align-items:center;gap:6px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:8px;padding:4px 10px;
}
.lang-btn{
  background:none;border:none;font-family:var(--font);
  font-size:.76rem;font-weight:700;color:var(--muted);
  cursor:pointer;padding:2px 4px;border-radius:4px;
  transition:all .2s;letter-spacing:.05em;
}
.lang-btn.active{color:var(--cyan)}
.lang-sep{color:var(--border);font-size:.8rem}
.nav-mobile-toggle{
  display:none;background:none;border:none;cursor:pointer;
  width:26px;height:18px;flex-direction:column;
  justify-content:space-between;padding:0;
}
.nav-mobile-toggle span{
  display:block;width:100%;height:2px;
  background:var(--muted);border-radius:2px;transition:all .3s;
}

/* ── HERO ── */
.hero{
  min-height:100vh;display:flex;align-items:center;
  position:relative;overflow:hidden;padding:100px 28px 80px;
}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.hero-glow{position:absolute;border-radius:50%;filter:blur(120px);pointer-events:none}
.hero-glow-1{
  width:700px;height:700px;top:-150px;right:-150px;
  background:radial-gradient(circle,rgba(0,212,255,.1) 0%,transparent 70%);
}
.hero-glow-2{
  width:500px;height:500px;bottom:-100px;left:-100px;
  background:radial-gradient(circle,rgba(0,102,255,.08) 0%,transparent 70%);
}
.hero-inner{position:relative;z-index:1;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.2);
  color:var(--cyan);padding:6px 16px;border-radius:100px;
  font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:28px;
}
.hero-badge::before{
  content:'';width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px var(--cyan);
  animation:blink 2s infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.hero-title{
  font-family:var(--disp);font-size:clamp(3.5rem,9vw,7rem);
  font-weight:800;line-height:.95;margin-bottom:28px;
}
.hero-accent{
  display:block;
  background:linear-gradient(135deg,var(--cyan) 0%,var(--blue) 55%,var(--purple) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  filter:drop-shadow(0 0 32px rgba(0,212,255,.35));
}
.hero-sub{
  font-size:1.1rem;color:var(--muted);max-width:520px;
  line-height:1.75;margin-bottom:40px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:72px}
.hero-stats{
  display:flex;gap:48px;flex-wrap:wrap;
  padding-top:40px;border-top:1px solid var(--border2);
  max-width:600px;
}
.hstat{display:flex;flex-direction:column}
.hstat-num{
  font-family:var(--disp);font-size:1.9rem;font-weight:800;line-height:1;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hstat-label{font-size:.78rem;color:var(--muted);margin-top:6px;font-weight:500}
.scroll-hint{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:.7rem;color:var(--muted);letter-spacing:.12em;text-transform:uppercase;z-index:1;
}
.scroll-line{
  width:1px;height:40px;
  background:linear-gradient(to bottom,var(--cyan),transparent);
  animation:grow 2s infinite;
}
@keyframes grow{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:10px;
  font-family:var(--font);font-size:.92rem;font-weight:600;
  cursor:pointer;transition:all .25s var(--ease);border:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  color:#050A14;box-shadow:0 4px 24px rgba(0,212,255,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,212,255,.45)}
.btn-glass{
  background:rgba(255,255,255,.04);border:1px solid var(--border2);
  color:var(--text);backdrop-filter:blur(8px);
}
.btn-glass:hover{border-color:var(--border);background:rgba(0,212,255,.06);color:var(--cyan)}
.btn-full{width:100%;justify-content:center}

/* ── SECTIONS ── */
.section{padding:112px 0}
.section-alt{background:var(--bg2)}
.section-header{text-align:center;margin-bottom:64px}
.section-tag{
  display:inline-block;
  background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.2);
  color:var(--cyan);padding:4px 14px;border-radius:100px;
  font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:14px;
}
.section-header h2{
  font-family:var(--disp);font-size:clamp(1.8rem,4vw,3rem);
  font-weight:800;margin-bottom:16px;letter-spacing:-.02em;
}
.section-desc{color:var(--muted);max-width:560px;margin:0 auto;font-size:1rem;line-height:1.75}

/* ── BENTO GRID ── */
.bento-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.bento-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r);padding:28px;
  position:relative;overflow:hidden;
  transition:border-color .3s,transform .3s,box-shadow .3s;
  backdrop-filter:blur(8px);
}
.bento-card:hover{
  border-color:rgba(0,212,255,.28);
  transform:translateY(-4px);
  box-shadow:0 20px 50px rgba(0,0,0,.3);
}
.bento-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.5),transparent);
  opacity:0;transition:opacity .3s;
}
.bento-card:hover::after{opacity:1}

/* Grid areas */
.bc-large{grid-column:1/3;grid-row:1/3;min-height:420px}
.bc-stat{grid-column:3;min-height:195px;display:flex;flex-direction:column}
.bc-row3{/* auto-placed in row 3 */}

/* Variants */
.bc-cyan{
  background:linear-gradient(135deg,rgba(0,212,255,.07),rgba(0,102,255,.04));
  border-color:rgba(0,212,255,.2);
}
.bc-blue{
  background:linear-gradient(135deg,rgba(0,102,255,.07),rgba(123,47,255,.04));
  border-color:rgba(0,102,255,.2);
}
.bc-purple{
  background:linear-gradient(135deg,rgba(123,47,255,.07),rgba(0,102,255,.04));
  border-color:rgba(123,47,255,.2);
}
.bc-tag{
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
.bento-card h3{font-family:var(--disp);font-size:1.15rem;font-weight:700;margin-bottom:10px}
.bento-card p{color:var(--muted);font-size:.9rem;line-height:1.65}
.bc-icon{font-size:2.2rem;margin-bottom:14px}
.bc-stat-icon{font-size:1.5rem;margin-bottom:10px}
.bc-stat-num{
  font-family:var(--disp);font-size:2.8rem;font-weight:800;line-height:1;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  margin-bottom:10px;
}
.bc-stat-desc{font-size:.85rem;color:var(--muted);line-height:1.6;flex:1}
.bc-stat-label{
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-top:auto;padding-top:12px;
}
.bc-list{list-style:none;display:flex;flex-direction:column;gap:9px;margin-top:14px}
.bc-list li{font-size:.88rem;color:var(--muted);display:flex;align-items:center;gap:10px}
.dot-cyan,.dot-blue,.dot-purple{
  width:6px;height:6px;border-radius:50%;flex-shrink:0;
}
.dot-cyan{background:var(--cyan);box-shadow:0 0 6px var(--cyan)}
.dot-blue{background:var(--blue);box-shadow:0 0 6px var(--blue)}
.dot-purple{background:var(--purple);box-shadow:0 0 6px var(--purple)}

/* Nano scale visual */
.scale-vis{margin:20px 0 60px}
.sv-track{
  position:relative;height:52px;
  background:linear-gradient(90deg,rgba(0,212,255,.05),rgba(0,102,255,.08));
  border-radius:26px;border:1px solid var(--border);
}
.sv-pt{
  position:absolute;left:var(--p);transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;
  height:100%;justify-content:center;
}
.sv-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--muted);border:2px solid var(--bg);
}
.sv-active .sv-dot{
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);
  width:14px;height:14px;
}
.sv-pt span{
  position:absolute;top:6px;font-size:.6rem;
  color:var(--muted);white-space:nowrap;
}
.sv-active span{color:var(--cyan);font-weight:700}
.bc-foot{
  position:absolute;bottom:24px;left:28px;right:28px;
  display:flex;align-items:baseline;gap:8px;
  padding-top:14px;border-top:1px solid var(--border2);
}
.bc-foot-num{
  font-family:var(--disp);font-size:1.5rem;font-weight:800;color:var(--cyan);
}
.bc-foot-label{font-size:.8rem;color:var(--muted)}

/* ── APPLICATIONS ── */
.apps-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.app-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r);padding:32px;
  position:relative;overflow:hidden;
  transition:all .3s var(--ease);
}
.app-card:hover{
  border-color:rgba(0,212,255,.25);transform:translateY(-4px);
  box-shadow:0 16px 48px rgba(0,0,0,.2),0 0 0 1px rgba(0,212,255,.08);
}
.app-num{
  font-family:var(--disp);font-size:4rem;font-weight:800;
  color:rgba(0,212,255,.05);
  position:absolute;top:12px;right:20px;line-height:1;
}
.app-icon{font-size:2rem;margin-bottom:16px}
.app-card h3{font-family:var(--disp);font-size:1.02rem;font-weight:700;margin-bottom:10px}
.app-card p{color:var(--muted);font-size:.87rem;line-height:1.65;margin-bottom:16px}
.app-tags{display:flex;flex-wrap:wrap;gap:6px}
.app-tags span{
  font-size:.7rem;padding:3px 10px;border-radius:100px;
  background:rgba(0,212,255,.06);border:1px solid rgba(0,212,255,.15);
  color:var(--muted);font-weight:500;
}

/* ── TIMELINE ── */
.timeline{max-width:720px;margin:0 auto}
.tl-item{
  display:grid;grid-template-columns:72px 14px 1fr;
  gap:0 20px;padding-bottom:40px;position:relative;
}
.tl-item:not(:last-child)::before{
  content:'';position:absolute;
  left:calc(72px + 20px + 6px);top:14px;
  width:2px;height:calc(100% - 14px);
  background:linear-gradient(to bottom,var(--cyan),rgba(0,102,255,.2));
}
.tl-year{
  font-family:var(--disp);font-size:.88rem;font-weight:800;
  color:var(--cyan);text-align:right;padding-top:0;
}
.tl-future .tl-year{color:var(--purple)}
.tl-dot{
  width:14px;height:14px;border-radius:50%;margin-top:1px;
  background:var(--cyan);border:3px solid var(--bg);
  box-shadow:0 0 12px var(--cyan);
}
.tl-future .tl-dot{background:var(--purple);box-shadow:0 0 12px var(--purple)}
.tl-body h4{font-size:.98rem;font-weight:700;margin-bottom:6px}
.tl-body p{color:var(--muted);font-size:.87rem;line-height:1.65}

/* ── ARTICLES ── */
.articles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.art-featured{grid-column:1/-1;display:flex}
.article-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r);overflow:hidden;
  transition:all .3s var(--ease);
}
.article-card:hover{
  border-color:rgba(0,212,255,.25);transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,.2);
}
.art-visual{
  flex-shrink:0;width:42%;min-height:240px;
  position:relative;
}
.article-card:not(.art-featured) .art-visual{width:100%;height:180px}
.av-badge{
  position:absolute;top:16px;left:16px;
  background:var(--cyan);color:var(--bg);
  font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:6px;
}
.av1{background:linear-gradient(135deg,#050f2e,#0d1a55,#0d2a60)}
.av2{background:linear-gradient(135deg,#0f1e3d,#1a1060,#3b0d60)}
.av3{background:linear-gradient(135deg,#012a1a,#023a2a,#0d4060)}
.av4{background:linear-gradient(135deg,#1f0a0a,#3d1010,#6b1a10)}
.art-body{padding:28px 32px;display:flex;flex-direction:column;justify-content:center}
.art-tag{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--cyan);
  background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.2);
  padding:3px 10px;border-radius:100px;margin-bottom:12px;
}
.art-body h3{font-family:var(--disp);font-size:1.05rem;font-weight:700;margin-bottom:10px;line-height:1.4}
.art-body p{color:var(--muted);font-size:.87rem;line-height:1.65;margin-bottom:16px}
.art-link{color:var(--cyan);font-size:.87rem;font-weight:700;transition:color .2s}
.art-link:hover{color:var(--blue)}

/* ── GLOSSARY ── */
.gl-search-wrap{
  max-width:500px;margin:0 auto 40px;
  position:relative;
}
.gl-search-icon{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  font-size:1.1rem;color:var(--muted);
}
#glossSearch{
  width:100%;padding:13px 20px 13px 44px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:12px;color:var(--text);font-family:var(--font);font-size:.93rem;
  outline:none;transition:border-color .2s,box-shadow .2s;
}
#glossSearch:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,212,255,.1)}
#glossSearch::placeholder{color:var(--muted)}
.glossary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.gl-item{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r-sm);padding:20px 24px;
  transition:all .2s;
}
.gl-item:hover{border-color:rgba(0,212,255,.25);transform:translateY(-2px)}
.gl-item.hidden{display:none}
.gl-item dt{font-weight:700;color:var(--cyan);margin-bottom:8px;font-size:.9rem}
.gl-item dd{color:var(--muted);font-size:.84rem;line-height:1.65;margin:0}

/* ── NEWSLETTER ── */
.nl-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:80px;align-items:center}
.nl-info .section-tag{display:inline-block;margin-bottom:16px}
.nl-info h2{font-family:var(--disp);font-size:2.1rem;font-weight:800;margin-bottom:16px;letter-spacing:-.02em}
.nl-info p{color:var(--muted);line-height:1.75;margin-bottom:28px}
.social-row{display:flex;gap:12px}
.social-btn{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:var(--surface);
  display:flex;align-items:center;justify-content:center;
  font-size:.84rem;color:var(--muted);font-weight:700;
  transition:all .2s;
}
.social-btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,212,255,.06)}
.nl-form{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:36px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.8rem;color:var(--muted);margin-bottom:6px;font-weight:600}
.form-group input[type="text"],
.form-group input[type="email"]{
  width:100%;padding:11px 16px;
  background:var(--bg);border:1px solid var(--border);border-radius:10px;
  color:var(--text);font-family:var(--font);font-size:.9rem;
  outline:none;transition:border-color .2s;
}
.form-group input:focus{border-color:var(--cyan)}
.interest-row{display:flex;flex-wrap:wrap;gap:8px}
.itag{
  display:flex;align-items:center;gap:6px;
  padding:7px 14px;border:1px solid var(--border);border-radius:100px;
  font-size:.8rem;color:var(--muted);cursor:pointer;transition:all .2s;
}
.itag:hover{border-color:var(--cyan);color:var(--cyan)}
.itag input{accent-color:var(--cyan)}
.form-success{
  display:none;margin-top:16px;text-align:center;
  color:#00ff88;font-size:.87rem;font-weight:600;
  padding:12px;background:rgba(0,255,136,.06);border-radius:8px;
  border:1px solid rgba(0,255,136,.15);
}
.form-success.visible{display:block}

/* ── FOOTER ── */
.footer{background:rgba(0,0,0,.4);border-top:1px solid var(--border2);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-desc{color:var(--muted);font-size:.84rem;line-height:1.7;max-width:320px;margin-top:12px}
.footer h4{font-size:.76rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:16px;font-weight:700}
.footer-links{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{color:var(--muted);font-size:.86rem;transition:color .2s}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid var(--border2);padding-top:24px;text-align:center;color:var(--muted);font-size:.78rem}

/* ── MAGAZINE LAYOUT ── */
.feat-grid{
  display:grid;
  grid-template-columns:1fr 340px;
  gap:20px;
  align-items:start;
}
.feat-aside{display:flex;flex-direction:column;gap:20px}

.mag-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r);overflow:hidden;
  transition:all .25s var(--ease);
}
.mag-card:hover{
  border-color:rgba(0,212,255,.28);
  transform:translateY(-4px);
  box-shadow:0 20px 50px rgba(0,0,0,.3);
}
.mag-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.5),transparent);
  opacity:0;transition:opacity .3s;
}
.mag-card{position:relative}
.mag-card:hover::after{opacity:1}

.mag-thumb{
  display:block;position:relative;
  height:260px;
  background:linear-gradient(135deg,var(--c1,#041a5e),var(--c2,#00D4FF));
  overflow:hidden;text-decoration:none;
  flex-shrink:0;
}
.mag-thumb--sm   {height:128px}
.mag-thumb--short{height:175px}
.mag-thumb::before{
  content:'';position:absolute;inset:0;
  background:repeating-linear-gradient(
    -45deg,
    transparent,transparent 24px,
    rgba(255,255,255,.025) 24px,rgba(255,255,255,.025) 25px
  );
}
.mag-thumb-icon{
  position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);
  font-size:3.5rem;line-height:1;
  filter:drop-shadow(0 4px 16px rgba(0,0,0,.5));
}
.mag-card--sm .mag-thumb-icon {font-size:2.2rem}
.mag-thumb--short .mag-thumb-icon{font-size:2.8rem}

.mag-cat{
  position:absolute;bottom:14px;left:14px;
  background:rgba(0,0,0,.6);backdrop-filter:blur(8px);
  color:var(--cyan);
  font-size:.67rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  padding:4px 10px;border-radius:6px;
  border:1px solid rgba(0,212,255,.2);
}
.mag-body{padding:24px}
.mag-card--sm .mag-body{padding:16px 18px}

.mag-title{
  font-family:var(--disp);font-size:1.18rem;font-weight:700;
  line-height:1.3;margin-bottom:10px;color:var(--text);
}
.mag-card--sm .mag-title{font-size:.96rem;margin-bottom:8px}
.mag-title a{color:inherit;text-decoration:none}
.mag-title a:hover{color:var(--cyan)}

.mag-excerpt{
  color:var(--muted);font-size:.88rem;line-height:1.65;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.mag-meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--border2);
}
.mag-date{color:var(--muted);font-size:.76rem}
.mag-link{
  color:var(--cyan);font-size:.82rem;font-weight:700;
  text-decoration:none;transition:opacity .2s;
}
.mag-link:hover{opacity:.7}

/* ── TOPIC SECTIONS ── */
.topic-header{
  display:flex;align-items:flex-end;
  justify-content:space-between;
  margin-bottom:32px;
}
.topic-title{
  font-family:var(--disp);font-size:2.2rem;font-weight:800;
  letter-spacing:-.02em;color:var(--text);margin-top:6px;
}
.view-all-link{
  color:var(--cyan);font-size:.87rem;font-weight:600;
  text-decoration:none;
  padding-bottom:3px;border-bottom:1px solid rgba(0,212,255,.3);
  transition:border-color .2s;white-space:nowrap;margin-bottom:5px;
}
.view-all-link:hover{border-color:var(--cyan)}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* ── THE BASICS ── */
.basics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.basics-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:var(--r);padding:32px;
  position:relative;overflow:hidden;
  transition:all .25s var(--ease);
}
.basics-card:hover{
  border-color:rgba(0,212,255,.28);
  transform:translateY(-4px);
  box-shadow:0 20px 50px rgba(0,0,0,.3);
}
.basics-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.5),transparent);
  opacity:0;transition:opacity .3s;
}
.basics-card:hover::after{opacity:1}
.basics-card--accent{
  border-color:rgba(0,212,255,.2);
  background:linear-gradient(135deg,rgba(0,102,255,.08),rgba(0,212,255,.04));
}
.basics-icon{font-size:2rem;margin-bottom:16px;line-height:1}
.basics-stat{
  font-family:var(--disp);font-size:3.8rem;font-weight:800;
  line-height:1;margin-bottom:14px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.basics-card h3{
  font-family:var(--disp);font-size:1.1rem;font-weight:700;
  margin-bottom:12px;color:var(--text);
}
.basics-card p{color:var(--muted);font-size:.88rem;line-height:1.65}

/* ── SCROLL ANIMATIONS ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.fade-up{opacity:0}
.fade-up.in{animation:fadeUp .6s var(--ease) forwards}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .feat-grid{grid-template-columns:1fr 300px}
  .nl-wrap{grid-template-columns:1fr;gap:48px}
}
@media(max-width:900px){
  .nav-links{
    display:none;flex-direction:column;
    position:absolute;top:62px;left:0;right:0;
    background:rgba(5,10,20,.97);backdrop-filter:blur(20px);
    padding:20px 28px;border-bottom:1px solid var(--border);gap:4px;z-index:999;
  }
  .nav-links.open{display:flex}
  .nav-mobile-toggle{display:flex}
  .feat-grid{grid-template-columns:1fr}
  .feat-aside{flex-direction:row}
  .feat-aside .mag-card{flex:1}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .basics-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hero-title{font-size:clamp(2.8rem,12vw,4rem)}
  .feat-aside{flex-direction:column}
  .topic-grid{grid-template-columns:1fr}
  .basics-grid{grid-template-columns:1fr}
  .topic-header{flex-direction:column;align-items:flex-start;gap:8px}
  .topic-title{font-size:1.6rem}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  .hero-stats{gap:28px}
  .tl-item{grid-template-columns:56px 14px 1fr;gap:0 14px}
}